Abdominal Aortic Aneurysm

An abdominal aortic aneurysm (AAA), a specific kind of aneurysm, is a condition in which the lining of the blood vessel called the aorta is enlarged within the abdomen. Abdominal aortic aneurysms pose a threat because they are usually silent until a medical emergency occurs.

The abdominal aorta is the largest blood vessel in the body and the main artery that originates in the heart. As the lining weakens from age and other risk factors, the vessel wall thins and expands. The most common location for an AAA is between where the aorta divides to supply blood to the kidneys and where it divides to supply blood to the pelvis and legs.

Risk factors

The exact cause of abdominal aortic aneurysm is not known, but the following are risk factors:

• High blood pressure
• Smoking
• High cholesterol
• Obesity
• Emphysema
• Genetic factors
• Gender (males have a higher risk)

You can reduce your risk of getting AAA by eliminating any risk factors you already have. Getting regular health screenings is another way to take control of your risk.

Warning signs

While many people with abdominal aortic aneurysm do not experience symptoms, these are the most common warning signs:

• Intense back or abdominal pain
• Rapid pulse
• Nausea and vomiting
• Excessive sweating
• Shock 

Diagnosis and screening

How do you know if you have an AAA? If you are relatively lean, you or your doctor may be able to feel it below your rib cage. The majority of AAAs are discovered as a result of medical imaging for other conditions. A Life Line Screening AAA ultrasound can easily detect this condition.

Interested in learning more about abdominal aortic aneurysm? Read our FAQs.